External ink supply and balancing system for inkjet printer
Inactive Publication Date: 2008-12-18
YAN YI TSUNG
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- Abstract
- Description
- Claims
- Application Information
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Benefits of technology
[0011]A further object of the present invention is to provide an external ink supply and balancing system for inkjet printer, in which each time the ink supply flow is started, the exhaust air is guided out of the ink chamber and the respective ink container to the respective external ink bottle through one respective flexible tube, and then exhaust air is guided through a top air discharge connector at the respective external ink bottle to an external buffering air bag via a flexible tube. Therefore, exhaust air is kept in the external air bag and will not be exhausted into the atmosphere.
[0012]A still further object of the present invention is to provide an external ink supply and balancing system for inkjet printer, in which each external ink bottle is attached with a top air discharge connector that is connected to an external air bag through a respective flexible tube. The exhaust air that is drawn out of the ink chamber and the respective ink container during an ink supply flow is guided through the respective external ink bottle toward the external air bag and then cumulated in the external air bag. Because the ink in each ink bottle is kept in an enclosed space and isolated from the atmosphere, the chemical composition of the ink will not deteriorate.
Problems solved by technology
The capacity of the ink containers of an inkjet printer of the aforesaid design is limited.
When heavy printing is required, the cost of the original ink container system is high.
During an ink supply flow, the ink in each external ink reservoir has a pressure that prohibits exhaust of air out of the inkjet printer, and therefore exhaust air is kept in the vent chambers of the inkjet printer, limiting the ink supply capacity of the external ink reservoirs.
When the pump is started to pump one ink into the printing-fluid delivery system after exhaust of air from the printer head, residual air in each flexible tube will be forced into the printing-fluid delivery system during forward flowing of the respective ink from the respective ink bottle through the respective substitute ink container toward the printing-fluid delivery system, resulting in formation of bubbles in the printer-head.
Method used
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[0040]Referring to FIGS. 1 to 5, an ink supply system is shown installed in a conventional inkjet printer 11. The inkjet printer 11 has a holder 13 at the front side. The holder 13 has a number of an ink-container bays 20 adapted for receiving a respective ink container 12, and two plug pipes 27 and 28 suspending in each ink-container bay 20 at different elevations. After insertion of one ink container 12 into one ink-container bay 20, the plug pipes 27 and 28 have the respective front ends inserted into the ink container 12 and kept in air communication with the inside of the ink container 12. The upper plug pipe 27 in each ink-container bay 20 has its rear end connected with a respective flexible tube 39. The flexible tubes 39 are arranged in parallel and respectively extended from the respective upper plug pipes 27 in the ink-container bay 20 to a respective vent chamber 14. The lower plug pipe 28 is each ink-container bay 20 has its rear end connected with a respective flexible ...
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An external ink supply and balancing system for inkjet printer, which mainly comprises a reflow system of each ink container of an inkjet printer be blocked and to have each ink container be connected to a respective external ink bottle through a respective L-shaped connector and flexible ink supply tube and also to be an air bag connected to an air discharge connector at each ink bottle through a flexible tube for collecting exhaust air so that when the inkjet printer runs an ink circulation flow, the ink bottles supply inks to the respective ink containers and guide exhaust air out of the ink containers to the air bag.
Description
BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]This invention relates to an ink supply system for inkjet printer, and particularly to an external ink supply and balancing system for inkjet printer.[0003]2. Description of the Prior Art[0004]In the conventional inkjet print commonly have an Active Air Management, the Active air management has a pump set between the printing-fluid delivery system and the ink containers and a plurality of flexible tubes respectively connected between the ink containers and respective vent chambers. During the first use of a new inkjet printer of the aforesaid design to run an ink circulation flow, the pump pumps the ink from each ink container into the ink chamber of the printing-fluid delivery system, till that the corresponding ink chamber and printer head have been fully filled with the respective ink. Following the operation of the inkjet printer and consumption of the ink of each ink container, air enters each respective ink chambe...
Claims
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Login to View More IPC IPC(8): B41J2/175
CPCB41J2/175B41J2/17509B41J2/17513B41J2/1752B41J2/17556
InventorYAN, YI-TSUNG
OwnerYAN YI TSUNG